add an error for ARM devices

addons/blender_dds_addon/directx/texconv.py

@@ -74,13 +74,12 @@ def load_dll(self, dll_path=None):
                 raise RuntimeError(f'This OS ({util.get_os_name()}) is unsupported.')
             dirname = os.path.dirname(file_path)
             dll_path = os.path.join(dirname, dll_name)
-            dll_path2 = os.path.join(os.path.dirname(dirname), dll_name)  # allow ../texconv.dll
+
+            if util.is_arm():
+                raise RuntimeError(f'{dll_name} does NOT support ARM devices')
 
         if not os.path.exists(dll_path):
-            if os.path.exists(dll_path2):
-                dll_path = dll_path2
-            else:
-                raise RuntimeError(f'texconv not found. ({dll_path})')
+            raise RuntimeError(f'texconv not found. ({dll_path})')
 
         self.dll = ctypes.cdll.LoadLibrary(dll_path)
         DLL = self.dll

addons/blender_dds_addon/directx/util.py

@@ -36,3 +36,7 @@ def is_linux():
 
 def is_mac():
     return get_os_name() == 'Darwin'
+
+
+def is_arm():
+    return 'arm' in platform.machine().lower()

changelog.txt

@@ -2,6 +2,7 @@ ver 0.3.3
 - Fixed a crash when closing Blender after exporting BC6 or BC7 textures.
 - Fixed a bug that sRGB formats make textures brighter when exporting.
 - Fixed an error when importing files from some specific directory structures.
+- Added an error for ARM devices.
 
 ver 0.3.2
 - Fixed an error when importing dds without image editor opened.